改性聚丙烯汽车保险杠的应用及发展前景

Application and Development Prospect of Modified Polypropylene Automobile Bumper

聚丙烯(PP)性能优良、密度小、耐化学腐蚀、加工性好、成本低,作为一种通用塑料用于汽车保险杠,但是PP还存在很大缺陷,如低温脆性大、模缩率大、着色性能不好。本文简述了改性PP汽车保险杠性能指标以及常见的改性方法,国内外关于聚丙烯保险杠的研究进展,以及未来聚丙烯保险杠发展趋势。

Polypropylene(PP)has excellent properties,low density,chemical corrosion resistance,good processability and low cost.It is used as a general purpose plastic for automobile bumper.However,PP still has many defects,such as brittleness at low temperature,large shrinkage and poor color performance.In this paper,the performance indicators and common modification methods of modified PP bumper are briefly described.On this basis,the research progress.of polypropylene bumper at home and abroad is briefly described,and the development trend of polypropylene bumper in the future is predicted.